Case for electronic device



FIG. 1 is a front-left isometric view of a case for electronic device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a front-right isometric view thereof; and,

FIG. 4 is a rear isometric view thereof.

The broken lines immediately adjacent the shaded surfaces represent boundaries of the claimed design. All other broken lines depict unclaimed environment. The broken lines form no part of the claimed design. 

The ornamental design for a case for electronic device, as shown and described. 